Updated readme, etc.

cmake/utilities.cmake

@@ -0,0 +1,15 @@
+# Add the required subdirectory and register it for linkage
+function(add_azrtos_component_dir dirname)
+    # Store the current list in a temp
+    set(tmp ${azrtos_targets})
+    # Add the subdir
+    add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/lib/${dirname})
+    # If there is a linker script defined, use it
+    if(EXISTS ${LINKER_SCRIPT})
+        target_link_options(${dirname} INTERFACE -T ${LINKER_SCRIPT})
+    endif()
+    # Add this target into the temp
+    list(APPEND tmp "azrtos::${dirname}")
+    # Copy the temp back up to the parent list
+    set(azrtos_targets ${tmp} PARENT_SCOPE)
+endfunction()